About the Number

1209671380

1209671379 ← → 1209671381

2進数表記:1001000000110100001111011010100

漢数字表記:十二億九百六十七万千三百八十

素因数分解:

2 2 × 5 1 × 17 1 × 41 1 × 107 1 × 811 1

素因数の和:985
約数の個数: 96
約数和(自身を含む): 2784523392
約数和(自身を除く): 1574852012

約数列:
[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 107, 164, 170, 205, 214, 340, 410, 428, 535, 697, 811, 820, 1070, 1394, 1622, 1819, 2140, 2788, 3244, 3485, 3638, 4055, 4387, 6970, 7276, 8110, 8774, 9095, 13787, 13940, 16220, 17548, 18190, 21935, 27574, 33251, 36380, 43870, 55148, 66502, 68935, 74579, 86777, 87740, 133004, 137870, 149158, 166255, 173554, 275740, 298316, 332510, 347108, 372895, 433885, 565267, 665020, 745790, 867770, 1130534, 1475209, 1491580, 1735540, 2261068, 2826335, 2950418, 3557857, 5652670, 5900836, 7115714, 7376045, 11305340, 14231428, 14752090, 17789285, 29504180, 35578570, 60483569, 71157140, 120967138, 241934276, 302417845, 604835690, 1209671380]

約数ペア:
[(1, 1209671380), (2, 604835690), (4, 302417845), (5, 241934276), (10, 120967138), (17, 71157140), (20, 60483569), (34, 35578570), (41, 29504180), (68, 17789285), (82, 14752090), (85, 14231428), (107, 11305340), (164, 7376045), (170, 7115714), (205, 5900836), (214, 5652670), (340, 3557857), (410, 2950418), (428, 2826335), (535, 2261068), (697, 1735540), (811, 1491580), (820, 1475209), (1070, 1130534), (1394, 867770), (1622, 745790), (1819, 665020), (2140, 565267), (2788, 433885), (3244, 372895), (3485, 347108), (3638, 332510), (4055, 298316), (4387, 275740), (6970, 173554), (7276, 166255), (8110, 149158), (8774, 137870), (9095, 133004), (13787, 87740), (13940, 86777), (16220, 74579), (17548, 68935), (18190, 66502), (21935, 55148), (27574, 43870), (33251, 36380)]

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